with open('sighan_train_8523.txt', 'r', encoding='utf-8') as files:
    lines = files.readlines()
    for line in lines:
        if not line:
            continue
        try:
            num, wrong, correct = line.strip().split('\t')
            if len(wrong) != len(correct):
                print(line)
        except:
            print('io' + str(line))

